SOLAR GENERATOR SYSTEM uses the suns energy to produce electricity they are constructed with solar panels, solar controller and batteries. If the output voltage is 220VAC or 110VAC, the system will need an  inverter......more.......

A SOLAR WATER HEATER is extremely simple. The cold water supply is connected to the solar storage tank. Water to be heated circulates between the storage tank and the solar collectors. The output from the solar storage tank becomes the cold water connection to the conventional gas, electric or oil water heater. When a hot tap is opened, pre-heated water is drawn from storage into the conventional ("auxiliary") water heater. The burner or electric element turns on only if the temperature cannot be maintained by the solar heater. Most properly-designed solar water heaters will supply 70 per cent or more of all the energy needed for water heating........more.......